Lubricator



Aug. 24, 1937. D. J. OHARA 2,090,983

' LUBRICATOR Filed June 7, 1935 2 Shqets-Sheet l Invento'r Pam/e] J OY/ara Attorney ,7

Aug. 24 1937. J, OHARA 2,090,983

LUBRICATOR I Filed June 7, 1935 2 Sheets-Sheet 2 Attorney Inventor Patented Aug. 24, 1937 UNITED STATES PATENT OFFICE I. 1 Q 2,090,983. I i

LUBRICATOR Daniel J. OHara, Monroe, Mich.

Application June '7, 1935, Serial No. 25,490 2 Claims. (01. 123-496) The present invention relates to new and useful improvements in engine lubrication and more particularly to an appliance whereby engines can be internally lubricated automatically.

5 The principal object of the present invention is to provide a lubricator for engines which would not only be automatic in operation but substantially foolproof.

Another important object of the invention is 10 to provide an automatic lubricator for engines wherein additional lubrication is supplied to the engine through the agency of thermostatic valve means.

Various other important objects and advan- 15 tages of the invention will become apparent to the reader of the following specification.

In the drawings: Figure 1 is a fragmentary side elevational view of an engine showing the lubricator supported 20 thereby.

Figure 2 is a side elevational view of the lubricator applied to an engine.

Figure 3 is a fragmentary elevational View looking at the opposite side from that shown in Figure 4 is a longitudinal sectional view through the thermostatic valve and adjustable piston type oil valve.

Figure 5 is a sectional view taken substantially 30 on line 55 of Figure 4.

Figure 6 is an end elevational view of the thermostatic valve looking toward the thermostatic end thereof.

Referring to the drawings wherein like numer- 35 als designate like parts, it can be seen that numeral 5 represents generally an internal combustion engine with numeral 6 designating the exhaust manifold and numeral I the intake manifold.

40 Numeral 8 represents an arm secured as at 9 to the top of the engine and this is provided with a depending leg having an outwardly disposed foot portion ll. Mounted upon this foot portion II is the oil container l2 having the top 45 I3 and extending through this top [3 and terminating adjacent the bottom of the container I2 is the tube M.

The thermostatic Valve assembly consists of the base plate l5 having openings therein for re- 5 ceiving the securing members I6 which secures this base to the leg ID of the bracket.

The base l merges into a shell like structure H, the upper portion of which is slotted as at 18. The side of this shell which goes against the leg 55 I0 is open and opposed to the exhaust manifold 6 as shown in Figure 1. The shell I! is provided with an inverted socket H! for receiving the threaded end of the sleeve 20 within which operates the rotor 2 I, which rotor is provided with a shaft like extension 22, supporting the laterally disposed arm 23 which protrudes through the slot 18. This shaft extension 22 is bifurcated as at 24 for receiving the inner end of the coiled thermostatic element 25, the outer end of which is fixed in the shell as at 26.

It can be seen that the arm 23 simply serves to limit the rotation of the rotor 2! so that the ducts therein will properly register with the connection nipples 21, 28, 29, and 30. The outlet tube 3! extends from the outlet nipple 21 to connect to the intake manifold as at 32, while the inlet tube l4 connects to the nipple 29. The rotor 2| is provided with an axial bore 33 which at one end extends to a cross bore at which point it is registrable with the nipples 2l--29. The nipples 28-40 are air inlet nipples leading to lateral ducts 34 extending radially from the axial bore 33. Below the junction between ducts 34 is a cylinder bore housing piston valve 3'! and a resistance spring adjustable by the adjustment screw.

The end of the cylinder 20 and ducts 34 form a vacuum chamber for effecting the movement of piston valve 31 which is attracted to the vacuum chamber during the idling of the motor, and released for movement in the opposite direction in the cylinder when the vent 29 is opened by the spring, during heavy pulling, or high speed of a motor which decreases the vacuum in the chamber. The spring 38 has its tension disposed against the valve 3'! and is adjustable by the set screw 36. The set screw 36 is to be set to determine the position of the valve 3! with respect to the transverse port of the rotor 2!. In the use and operation of this device, it can be seen that the thermostat 25 is set so that it opposes the block or exhaust manifold of a motor. When the motor is in operation and the block or exhaust manifold adjacent the lubricator reaches a temperature of approximately 200 F. or more, the thermostat operates the lubricator by turning the lubricator rotor 2| one-half revolution where it registers its two air intake ducts with the axial bore of the rotor 2| and communicates the transverse bore in the rotor with the oil line M. The action of air on each side of the oil supply carries a regulated supply of oil which is determined by the positioning of the set screw 36. The oil is supplied to the intake manifold of the engine or entering the fuel supply line heinvention in specific terms, it is to be understood 15 that numerous changes in the shape, size and materials may be resorted to without departing from the spirit or scope of the invention'as claimed hereinafter. Having described the invention, what is claimed 20 as new is: I

1. In combination with the intake and exhaust manifolds of an internal combustion engine, an oil container, a supply line from the said container to the intake manifold, a valve in the said conduit, and a thermostat adjacent the exhaust manifold operative to actuate the said valve, said thermostat being provided with a shell covering the same, said shell having a slot therein, said valve including a shaft connected to the said thermostat, and an arm extendingfrom the said shaft and into theisaid slot. 1 f

2. In combination with the intake and exhaust manifolds of an internal combustion engine, an

'"oil container, a supply line from the said container to the intake manifold, a valve in the said conduit, and a thermostat adjacent the exhaust manifold operative to actuate the said valve, and a piston valve for limiting the feed through the said valve.

DANIEL J. OHARA. 

